TOPIC: Possible to determine event size?

Has anyone come up with a way to know what the size of an event is - the storage it needs? It's amazing that in FCP X we can only see library size, but not events. This would be great in knowing especially when having to move an event to it's own library on another drive. I haven't found a tool that can provide this either. I looked into Final Cut Library Manager, but that doesn't do it.